A roof assembly for a vehicle, having an opening in its fixed roof, comprises a frame and a closure element which can be adjusted by means of an adjusting mechanism including a driving slide. The thin positively charged capsules are readily brought into the cytosol of target cells by endocytosis. , metal oxide semiconductor field effect transistors that include the same. The present invention relates to a solid golf ball comprising at least one layer of a core, and at least one layer of a cover formed on the core, wherein at least one of the layers of the core is formed by vulcanizing and press-molding a rubber composition comprising.